Cliff, there are a lot of variables to consider, and you've not provided much to go on. Is the tree still moving (is the lean increasing), or has it stabilized in position? Is there a target of value, which could be hit and damaged by the falling tree, or by debris flying off of the tree upon impact?
Does the tree still have a decent looking canopy? Hurricane Matthew went through long enough ago that I'd think you'd see a lot of dieback, wilt and browning in the canopy if it had suffered major root loss. If you haven't done and don't do tree risk assessment as a part of your day to day offerings, you might want to suggest that your client level up at this point to an arborist with experience in this. If the tree has stopped moving, that's one thing.. If it's still in motion, that's quite another.
There are competent arborists in your area with tree risk assessment expertise. Guy is one of them.